What is the meaning of Carbon Footprint? It can be best understood as the Earth’s way of keeping track of how much a building impacts the environment. In real estate, it’s like a measure of all the pollution and greenhouse gases that happen from the moment we decide to build a place until the day it’s not used anymore. Consequently, this includes everything from the materials we use to construct it, how we use energy in the building, and even what happens when we have to take it down. Carbon offsets are also considered and measured to calculate the total carbon emission. Making buildings with a smaller environmental impact is important for taking care of our planet.